CTaskDialog::SetDefaultCommandControl

Specifies the default command button control.

void SetDefaultCommandControl(
   int nCommandControlID
);

Parameters

• [in] nCommandControlID
  The ID of the command button control to be the default.

Remarks

The default command button control is the control that is selected when the CTaskDialog is first displayed to the user.

This method throws an exception if it cannot find the command button control specified by nCommandControlID.

Example

// TODO: Replace the strings below with the appropriate message,  
// main instruction, and dialog title.
CString message("This is an important message to the user.");
CString mainInstruction("Important!\nPlease read!");
CString title("Alert Dialog");

CTaskDialog taskDialog(message, mainInstruction, title, 
    TDCBF_YES_BUTTON | TDCBF_NO_BUTTON | TDCBF_CANCEL_BUTTON );

taskDialog.AddCommandControl(201, L"First command button control");
taskDialog.AddCommandControl(202, L"Second command button control");
taskDialog.AddCommandControl(203, L"Third command button control");

// Show the CTaskDialog and remember how the user closed it. 
int selection = taskDialog.DoModal();

switch(selection)
{
case 201:
    // TODO: Place processing here for the first  
    // command button control. 
    break;

case 202:
    // TODO: Place processing here for the second  
    // command button control. 
    break;

case 203:
    // TODO: Place processing here for the third  
    // command button control. 
    break;

default:
    break;
}

// Remove all the command controls so that we can use the same task 
// dialog with new command button controls.
taskDialog.RemoveAllCommandControls();

taskDialog.AddCommandControl(301, 
    L"New first command button control");
taskDialog.AddCommandControl(302, 
    L"New second command button control should require elevation",
    TRUE, TRUE);
taskDialog.AddCommandControl(303, 
    L"New third command button control should be disabled");

// Change the default command button control
taskDialog.SetDefaultCommandControl(302);

// Make sure the third option is disabled. 
if (taskDialog.IsCommandControlEnabled(303))
{
    taskDialog.SetCommandControlOptions(303, FALSE);
}

taskDialog.DoModal();

switch(taskDialog.GetSelectedCommandControlID())
{
case 301:
    // TODO: Place processing here for new first  
    // command button control. 
    break;

case 302:
    // TODO: Place processing here for new second  
    // command button control. 
    break;

case 303:
    // TODO: Place processing here for the new third  
    // command button control. 
    break;

default:
    break;
}

// Remove all the command button controls and add new ones from 
// the string table resource.
taskDialog.RemoveAllCommandControls();
taskDialog.LoadCommandControls(1001, 1005);

Requirements

Header: afxtaskdialog.h

See Also

Reference

CTaskDialog Class

Hierarchy Chart

CTaskDialog::AddCommandControl

CTaskDialog::SetCommandControlOptions

CTaskDialog::GetSelectedCommandControlID

CTaskDialog::IsCommandControlEnabled

CTaskDialog::RemoveAllCommandControls